Page 164 - 2019 SHOP MANUAL CRF1000/A/D

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ELECTRIC STARTER
SERVICE INFORMATION
ELECTRIC STARTER
GENERAL

If the current is kept flowing through the starter motor causing it to turn while the engine is not cranking over, the starter motor may
be damaged.
• The starter motor can be serviced with the engine installed in the frame.
• Always turn the ignition switch OFF before servicing the starter motor. The motor could suddenly start, causing serious injury.
• A weak battery may be unable to turn the starter motor quickly enough, or supply adequate ignition current.
• When servicing the starter system, always follow the steps in the troubleshooting table (page 6-2).
• Refer to the following components information:
– Ignition switch (page 22-23)
– Starter switch (page 22-24)
– Engine stop switch (page 22-24)
– Clutch switch (CRF1000/A) (page 22-25)
– Gear position switch (CRF1000/A) (page 22-25)
– Sidestand switch (page 22-27)
– The following color codes are used throughout this section.
Bl = Black Br = Brown Gr = Gray G = Green Lg = Light green R = Red
W = White Y = Yellow

TROUBLESHOOTING

Unusual condition Probable cause (Check in numerical order)
Starter motor Starter motor does not turn 1. Loose or poor contact on related connectors and terminals
2. Blown fuse
3. Weak battery
4. Faulty starter relay switch
5. Faulty starter motor
6. Loose connection, open or short circuit in starter motor
cable
7. Faulty starter switch
8. Open circuit in starter relay switch ground circuit
9. Faulty starter relay (CRF1000D)
10.Open or short circuit in starter relay switch power circuit
11.Loose contact or open circuit in related wires
CRF1000/A: 1. Loose or poor contact on related connectors and terminals
Starter motor turns only when the 2. Faulty clutch switch
transmission is in neutral (Starter 3. Faulty sidestand switch
motor does not turn when the 4. Loose contact or open circuit in related wires
transmission is in any gear with the
sidestand retracted and clutch lever
pulled in)
CRF1000/A: 1. Loose or poor contact on related connectors and terminals
Starter motor turns only when the 2. Faulty diode
transmission is in any gear with the 3. Faulty gear position switch
sidestand retracted and clutch lever 4. Loose contact or open circuit in related wires
pulled in (Starter motor does not turn
when the transmission is in neutral with
the sidestand lowered and clutch lever
released)
Starter motor turns slowly 1. Low battery voltage
2. Poorly connected battery terminal cable
3. Poorly connected starter motor cable
4. Faulty starter motor
5. Poorly connected battery ground cable
Starter motor turns, but engine does 1. Starter motor is running backwards
not turn – Case assembled improperly
– Terminals connected improperly
2. Faulty starter clutch
3. Damaged or faulty starter idle gear and/or reduction gear
Starter relay switch "Clicks", but 1. Crankshaft does not turn due to engine problems
engine does not turn over

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